Clinical Trial: Biomarkers for the Prognosis of Decompensated Alcoholic Liver Disease

Study Status: Completed
Recruit Status: Completed
Study Type: Observational

Official Title: The Feasibility of Liver Biomarkers as Prognostic Markers in Decompensated Alcoholic Liver Disease

Brief Summary: Fibroscan is a non invasive imaging investigation which measures liver stiffness, known to correlate well with liver scarring and cirrhosis on liver biopsy. Indocyanine green is an inert dye which is purely extracted from the blood by liver cells, and is hence an excellent marker of both liver cell function and overall liver blood flow. There is little data for either of these biomarkers regarding outcomes in alcoholic liver disease. We aim to establish the accuracy of these liver biomarkers in predicting important liver related outcomes (death, transplantation and hospital readmission with cirrhosis related consequences) in patients with severe (decompensated) alcoholic liver disease. Moreover, we will assess whether the serial measurement of biomarkers has any impact on alcohol abstinence, motivation or quality of life. Over an 18 month period, 125 consecutive hospital inpatients with decompensated alcoholic liver disease will undergo baseline biomarker measurement, routine blood and urine tests and qualitative questionnaires. These will be measured during their initial hospital admission (0 months) with subsequent repeat measurement during follow up visits at 1, 2, 4 and 6 months. Each study visit time will be in the region of 30-40 minutes to complete these investigations. The end of the study for individual patients will be patient death, liver transplantation or 6 month from study enrolment; whichever occurs first.

Detailed Summary:

This is a single centre longitudinal cohort feasibility pilot study of patients with decompensated alcoholic liver disease. We aim to recruit 125 consecutive patients with decompensated alcoholic liver disease over an 18 month period. This number is based upon approximately 10 admissions per month to acute liver services with decompensated alcoholic liver disease and includes a presumed 20% dropout rate during follow up, giving a total cohort of 100 patients. Patients will undergo a maximum of 6 months follow up following study recruitment.

The purposes of this study are:

1. To assess the performance of diagnostic liver biomarkers (Indocyanine Green, Fibroscan and blood and urinary biomarkers) in predicting mortality in decompensated alcoholic liver disease.
2. To compare the diagnostic and prognostic end points of these biomarkers with existing cirrhosis prognostic scoring systems (Child Pugh, MELD and UKELD).
3. To assess the performance of diagnostic biomarkers as a therapeutic aid to quality of life and alcohol abstinence.

Potentially eligible patients i.e. adults with decompensated liver disease with alcohol as a major co-factor, and acutely admitted secondary to sequelae of hepatic decompensation, will be approached by an existing member of their clinical care team (The CI & Co-Investigators form part of this team). Any patient who decides to take part in the study will have a baseline inpatient study visit either on their inpatient ward or to the NDDC Biomedical Research Unit (BRU). Subsequent follow up visits will be to the BRU.

Inclusion Criteria:

• The proportion of deaths up to 6 months from the baseline visit directly attributable to consequences of cirrhosis